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I saw a huge die-off of threespine sticklebacks yesterday. Capitol Lake is
in downtown Olympia, and was once a natural estuary, but is now a "proper"
(concrete walls, landscaping, etc) city lake with tidal influence through a
gate on the downstream end. There are thousands, maybe tens of thousands,
of dead sticklebacks washed along the shoreline. I might not have noticed
had my dog not decided to sample the sticklesnacks. It seems these fish
die after spawning. I think most if not all of these are anadromous
because of the lake's proximity to saltwater. I also walked along the
marine waterfront and could see a lot of individual sticklebacks swimming
in the salt water, along with thousands of juvenile salmon (chinook maybe)
cruising in a long seemingly endless school along the shoreline, and dozens
of dinner plate-sized jellyfish.

--
Jay DeLong
Olympia, WA
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